# aa 2 vs Birds Evolution Merge

The clearest difference is review sentiment: Birds Evolution Merge at 87% against aa 2's 41%. Birds Evolution Merge also leads on rating (4.7 vs 3.5). aa 2's advantage is ads (none vs shown) and update cadence (fortnightly vs every 5 weeks). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. aa 2 sells 2 one-off in-app purchases and Birds Evolution Merge sells 14 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Birds Evolution Merge holds the better App Store score, 4.7 against 3.5. Both are backed by a comparable volume of ratings — 624 and 852 respectively. Written reviews point the same way: 41% of aa 2's written reviews are positive against 87% of Birds Evolution Merge's.

aa 2 ships an update fortnightly, Birds Evolution Merge every 5 weeks. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | aa 2 | Birds Evolution Merge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (624 ratings)](https://appshunter.io/ios/app/aa-2/id1028772367/reviews) | **[4.7 (852 ratings)](https://appshunter.io/ios/app/birds-evolution-merge/id1171392372/reviews)** |
| Number of ratings | 624 | **852** |
| Positive reviews | 40.8% of reviews | **87.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 14 MB | 156 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [General Adaptive Apps Pty Ltd](https://appshunter.io/developer/937589555) | [TPG TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/444343830) |

## What reviewers say

### aa 2

[App page](https://appshunter.io/ios/app/aa-2/id1028772367)

Experience a classic arcade game on your iOS device. This fundamental app offers a familiar gameplay experience, reminiscent of iconic mobile games from the past. Enjoy a simple yet engaging challenge.

**Highlights:** Classic arcade gameplay, Familiar controls, Simple and engaging, Handmade in Australia

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skip aa 2 Level | $0.99 | one-time |
| Remove Ads in aa 2 | $0.99 | one-time |

**What reviewers like**

- 🚀 Challenging and addictive
- 👍 Great game overall
- 💡 Innovative concept

**What reviewers complain about**

- 🐛 Glitches and bugs on certain levels
- 🤯 Extremely difficult and frustrating
- 💰 Too many ads

**Reported bugs**

- Level 18 not working as expected
- Level 24 instant failure
- Level 118 unbeatable due to glitch

**Requested features**

- Add level skip option
- Improve level design and difficulty progression
- Better instructions and tutorials


### Birds Evolution Merge

[App page](https://appshunter.io/ios/app/birds-evolution-merge/id1171392372)

Combine various bird species to evolve them into new, bizarre forms. Explore different stages, unlock curious creatures, and discover unexpected endings in this evolutionary merge game. Earn coins through bird poop to buy more creatures and accelerate your progress.

**Highlights:** Combine similar birds to create new creatures, Evolve birds to discover exotic forms, Use bird poop coins to buy new creatures, Discover different stages and bird species, Unlock various possible endings, Incremental clicker gameplay

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Hard Currency Pack 1 | $1.99 | one-time |
| pack with diamonds | $1.99 | one-time |
| pack of rubies | $1.99 | one-time |
| instant coins doubler | $1.99 | one-time |
| Promo Bundles VeryHigh | $2.99 | one-time |
| Shop Bundle 1 | $2.99 | one-time |
| Hard Currency Pack 2 | $4.99 | one-time |
| big pack of rubies | $5.99 | one-time |
| income doubler | $5.99 | one-time |
| Shop Bundle 2 | $5.99 | one-time |
| Trinket | $6.99 | one-time |
| Hard Currency Pack 3 | $9.99 | one-time |
| starter bundle discount | $9.99 | one-time |

**What reviewers like**

- 💎 Addictive and fun gameplay
- 🎨 Ability to customize birds
- 🐦 Variety of bird species
- 🎶 Enjoyable music

**What reviewers complain about**

- 🔍 Repetitive gameplay
- 🛑 Excessive ads
- 🐛 Bugs and crashes
- 🔊 Music interruption issues

**Reported bugs**

- Inability to change bird colors
- Incorrect pricing in the store
- Game crashing after updates

**Requested features**

- More bird species and evolution stages
- Ability to listen to music while playing
- Improved performance and stability


## Frequently asked questions

### Is aa 2 free?

aa 2 is free to download, with in-app purchases available.

### Is Birds Evolution Merge free?

Birds Evolution Merge is free to download, with in-app purchases available.

### Which has better reviews, aa 2 or Birds Evolution Merge?

Birds Evolution Merge is rated higher. aa 2 averages 3.5 out of 5 from 624 ratings, while Birds Evolution Merge averages 4.7 from 852 ratings.

### Do aa 2 or Birds Evolution Merge have ads?

Birds Evolution Merge shows ads; aa 2 does not.

### Which is updated more often, aa 2 or Birds Evolution Merge?

aa 2 ships an update fortnightly, and Birds Evolution Merge every 5 weeks. Most recently, aa 2 was updated on October 26, 2026 and Birds Evolution Merge on October 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*